Wordnet Synset 03905309-n

http://lila-erc.eu/data/lexicalResources/LatinWordNet/id/LexicalConcept/03905309-n an entity of type: LexicalConcept

a fine coating of oxide (produced by oxidation over a long period of time) on the surface of a metal (particularly copper)
Wordnet Synset 03905309-n 

data from the linked data cloud